<template>
  <div v-if="Object.keys(detailInfo).length!==0" class="goods-info">
      <div class="info-desc clear-fix">
          <div class="start"></div>
          <div class="desc">{{detailInfo.desc}}</div>
          <div class="end"></div>
      </div>
      <div class="info-key">{{detailInfo.detailImage[0].key}}</div>
      <div class="info-list">
          <img v-for="(item, index) in detailInfo.detailImage[0].list" :key="index" :src="item" alt="" @load="imgLoad">
      </div>
  </div>
</template>

<script>
export default {
name:"DetailGoodsInfo",
props:{
    detailInfo:{
        type:Object,
        default(){
            return {}
        }
    }
},
data() {
    return {
        counter:0,
        imagesLength:0
    }
},
methods: {
    imgLoad(){
        //判断，所有的图片都加载完了，那么进行一次回调就好了
    if(++this.counter===this.imagesLength){
        this.$emit('imageLoad')
    }
    }
},

//监听图片加载的数量
watch:{
    detailInfo(){
        //获取图片的个数
        this.imagesLength=this.detailInfo.detailImage[0].list.length
    }
}
}
</script>

<style scoped>
.goods-info {
    padding: 20px 0;
    border-bottom: 5px solid #f2f5f8;
}
.info-desc {
    padding: 0 15px;
}
.info-desc .start,
.info-desc .end {
    width: 90px;
    height: 1px;
    background-color: #a3a3a5;
    position: relative;
} 
.info-desc .start {
    float: left;
}
.info-desc .end {
    float: right;
}
.info-desc .start::before,
.info-desc .end::after {
    content: '';
    position: absolute;
    width: 5px;
    height: 5px;
    background-color: #333;
    bottom: 0;
}
.info-desc .end::after {
    right: 0;
}
.info-desc .desc {
    padding: 15px 0;
    font-size: 14px;
}
.info-key {
    margin: 10px 0 10px 15px;
    color: #333;
    font-size: 15px;
}
.info-list img {
    width: 100%;
}
</style>